Can someone please tell me that this waking up 45 mins into sleep and crying does END?? It has been going on for about a month (DD is 3.5 months) and not slowing up at all. We manage it and know all about waking out of a sleep cycle and people say "it's just a phase" etc etc but WHEN will it stop? I read on one site it is most common between 8-16 weeks so I am hoping that is the case!